You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\ \\ ((\\\ (practical OR practice) guidebook to ((biostatistical OR biostatistics) OR statistical) AND epidemiology.\\\ ) OR (\\\ (practical OR practice) guide to statistics AND epidemiology.\\\ ))~\\ \".
• Adding a wildcard symbol may retrieve word variants: \ \\ ((\\\ (practical OR practice) guidebook to ((biostatistical OR biostatistics) OR statistical) AND epidemiology.\\\ ) OR (\\\ (practical OR practice) guide to statistics AND epidemiology.\\\ ))~\\ \*.